Rig only generating root but I can't use Human(metarig)
You can use the Simple Human metarig, which has no fingers and no facial bones, edit it accordingly to your character, then generate the Rigify rig, which has complex and sophisticated mechanisms that lets you animate easier.

For further infos relate to Blender manual:
https://docs.blender.org/manual/en/2.81/addons/rigging/rigify.html